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Finding the Fourth Proportional to 210,640.41, 315,894.98 and 70,366.23

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Solution

The fourth proportional to 210,640.41, 315,894.98 and 70,366.23 is: 105,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,640.41 : 315,894.98 = 70,366.23 : x
  2. Step 2: Convert to fraction form
    210,640.41/315,894.98 = 70,366.23/x
  3. Step 3: Cross multiply
    210,640.41x = 315,894.98 × 70,366.23
  4. Step 4: Simplify right side
    210,640.41x = 22,228,338,994.44
  5. Step 5: Solve for x
    x = 22,228,338,994.44/210,640.41
  6. Step 6: Final answer
    x = 105,527.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.